<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<script type="text/javascript" src="js/jquery-1.12.4.min.js" ></script>
		<style type="text/css">
			div{
				width: 300px;
				height: 300px;
				background: pink;
				display: none;
			}
		</style>
	</head>
	<body>
		
	</body>
	<script type="text/javascript">
		function aa(){
			alert('aaa')
		}
		var fn = (function(){
			function bb(){
				var aa = 123 
				return aa;
			}
			return bb;
		})();
		
		var res1 = fn();
		console.log(res1);
	</script>
</html>
